Pick your market
Choose from 7 countries, with local rules and taxes built in.
Every calculator. Every market. Actually correct.
Every calculator in Stresst has been rebuilt per country using that country's real rules — independently checked and sourced. Not ported from a UK template. Not estimated.
7Countries covered
40+Calculators, localised
£0To download & try
100%Sourced, dated rates
How Stresst calculators work
Enter your numbers
Start with sensible defaults, then edit them to match your numbers.
Stress-test it
See what changes if rates, rent or costs move.
Save and export
Save scenarios and export PDFs. PDF export is premium.
Core Calculators
The everyday numbers behind buying, owning and refinancing a home.
"Every rate in every calculator is independently checked against primary sources — HMRC, ATO, IRAS, LHDN, IRSA, and more. We don't copy from other calculators. We go to the source."
Free to start. Deeper when you need it.
Core calculators are free. Premium tools unlock seamlessly inside the app.
Download free